As we head into the second half of the season several coaches around the league are feeling not so secure about their job status. With several Super Bowl winning coaches like Bill Cowher, Mike Shanahan, Mike Holmgren, John Gruden, and Brian Billick lingering out there a lot under-performing teams are going to be re-evaluating their head coaches this winter. It is time to start talking about which coaches are dead men walking and which ones have one foot out the door and need to step it up if they want to retain their jobs.